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A Solid‐State Electrochemiluminescence Sensor Based on Novel Two‐Dimensional Ti 3 C 2 MXene
Author(s) -
Xing Huanhuan,
Xia Hongyin,
Fan Yongchao,
Xue Yuan,
Peng Chao,
Ren Jiangtao,
Li Jing,
Wang Erkang
Publication year - 2021
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.202100348
Subject(s) - luminophore , electrochemiluminescence , materials science , electron transfer , conductivity , nafion , solid state , photocathode , nanotechnology , analytical chemistry (journal) , chemical engineering , luminescence , chemistry , electrode , electron , optoelectronics , physics , electrochemistry , organic chemistry , quantum mechanics , engineering
Abstract Herein, highly conductive MXene‐Ti 3 C 2 was employed as effective nanocarriers for anchoring electrochemiluminescence (ECL) luminophore of Ru(bpy) 3 2+ (Ti 3 C 2 −Ru). Different from the previous work, the Ti 3 C 2 −Ru composite was achieved in several seconds due to the electrostatic interaction between positively charged Ru(bpy) 3 2+ and negatively charged Ti 3 C 2 . A series of characterizations indicated the successful formation of Ti 3 C 2 −Ru. Then, the solid‐state ECL platform was constructed with the assistance of membrane material, Nafion. The introduction of Ti 3 C 2 with large surface area provided a rapid strategy for capturing luminophore of Ru(bpy) 3 2+ and endowed the solid‐state platform with good electron transfer capacity owing to the super conductivity. Based on the stable loading of Ru(bpy) 3 2+ , the as‐designed platform was successfully used for the analysis of lidocaine and the satisfied analytical results were obtained in human plasma. More importantly, the proposed approach not only enriched the application of Ti 3 C 2 in the sensing field, but also shed light on the label‐free ECL bioanalysis.